JP2010159097A - Method of wrapping rope for elevator - Google Patents

Abstract

Provided is a highly versatile elevator rope hanging method applicable to an elevator installed in a high-rise building.
A process of suspending a counterweight 11 on an upper part of a hoistway 1A, a process of suspending a work floor 8 on an upper part of the hoistway 1A by a first lifting machine 3, and a support hire 21 for a second lifting machine. The rope drum 17 is placed on the uppermost floor landing 18a, and the main rope 16 drawn out from the rope drum 17 is wound around the hoisting machine 5 to the counterweight 11 The step of connecting, the step of shifting the rope drum 17 and suspending it to the support hire 21, the first lifting machine 3 and the second hoisting machine 22 being driven to synchronize the work floor 8 and the support hiring 21 An elevator rope hanging method including a step of lowering and a step of removing the main rope 16 from the rope drum 17 at the lower part of the hoistway 1A and connecting the main rope 16 to the car 35.
[Selection] Figure 6

Description

  The present invention relates to a method for hooking an elevator rope in which a car cage and a counterweight are held in a fishing bottle type.

  Traditionally, elevator rope hanging work has been done by connecting one end of the main rope to the car and connecting the other end of the main rope to the counterweight via a hoist provided in the machine room at the top of the hoistway. Has been done. In recent years, with the increase in passengers who use elevators, the size of a car has been increased so that many passengers can ride at once. For this reason, a plurality of main ropes are used for the elevator, and it is difficult to entangle the main ropes. Thus, the elevator rope-hanging operation is more complicated than before.

  Therefore, in order to eliminate such complications and improve the efficiency of the elevator rope hanging work, a rope drum on which a plurality of main ropes are wound is placed on a car frame as a work floor so that it can roll. In addition, an elevator rope hooking method has been proposed in which a plurality of main ropes are unwound from a rope drum and wound around each sheave by raising and lowering the car frame with a temporary hoisting machine as a driving device (for example, , See Patent Document 1).

JP 2001-302139 A

  Recently, in addition to the above, high-rise buildings with high floors are being actively constructed. In particular, in this type of high-rise buildings, the elevators of the above-described large-sized passenger cars are used. When the elevator rope hanging method disclosed in Patent Document 1 is applied to an elevator of such a high-rise building, the length of the main rope connecting the carriage and the counterweight increases, and the main rope is wound. The weight of the rope drum turned becomes very heavy. Therefore, in the temporary hoisting machine used as a drive device for raising and lowering the work floor, the work floor cannot be raised and lowered while the rope drum is movably mounted on the work floor, and the main rope is removed from the rope drum. Cannot be extended. As described above, the rope-hanging method of the elevator cannot be applied to an elevator installed in such a high-rise building, and there is a problem that versatility is low.

  The present invention has been made in view of the actual situation of the prior art, and an object thereof is to provide a highly versatile elevator rope hanging method that can be applied to an elevator installed in a high-rise building.

  In order to achieve the above object, the elevator rope tying method of the present invention is characterized in that one end of the main rope is connected to the car and the main rope is connected via a hoisting machine provided in the machine room at the top of the hoistway. In the elevator rope connecting method with the other end connected to the counterweight, the step of suspending the counterweight on the upper part of the hoistway and the step of suspending the work floor on the upper part of the hoistway with the rope of the first lifting machine And a process of suspending a support worker on the upper part of the hoistway with a rope of a second lifting machine, and a rope drum around which the main rope is wound was placed on the upper floor landing and fed out from this rope drum Wrapping the main rope around the hoisting machine and connecting it to the counterweight; transitioning the rope drum from the upper floor landing and suspending it to the support hire; the first lifting machine; The second hoist is driven to A step of synchronizing the work floor and the support hire to the lower part of the hoistway, and a step of removing the main rope from the rope drum and connecting to the car at the lower part of the hoistway. .

  In the elevator rope hanging method configured as described above, the work floor and the support hire are separately suspended using the ropes of the first and second hoisting machines, and the ropes are supported by the support hiring. By moving the drum, even a heavy rope drum can be raised and lowered. Therefore, in a state where the main rope fed from the rope drum is connected to the counterweight suspended at the upper part of the hoistway through the hoisting machine, the second hoist is driven to raise and lower the rope drum from the upper part of the hoistway. By lowering to the lower part of the road, the rope drum can rotate and the main rope can be fed out. At that time, the rope lift drum can be supported from the work floor during the descent by driving the first lifting machine and the second lifting machine and lowering the work floor and the support work to the lower part of the hoistway in synchronization. Therefore, it is possible to suppress the vibration of the rope drum and to ensure the safety during the work of the worker. Thus, it can be applied to an elevator installed in a high-rise building that requires a heavy rope drum, and is highly versatile.

  In the elevator rope hanging method according to the present invention, the work floor and the rope drum are separately suspended by the first lifting machine and the second lifting machine, respectively, so that the load is distributed to each lifting machine. Even the drum can be raised and lowered, and the main rope can be fed out from the rope drum as it is lowered. At that time, the rope lift drum can be supported from the work floor during the descent by driving the first lifting machine and the second lifting machine and lowering the work floor and the support work to the lower part of the hoistway in synchronization. Therefore, it is possible to suppress the vibration of the rope drum and to ensure the safety of the worker when working, and to prevent the plurality of main ropes from being entangled, so that the work can be performed easily. In this way, the safety and work efficiency of work can be improved, and it can be applied to an elevator installed in a high-rise building, and is highly versatile.

It is a flowchart which shows the rope hooking method of the elevator which concerns on the example of embodiment of this invention. It is a hoistway longitudinal cross-sectional view explaining this rope hanging method. It is the front view to which the support employment periphery used for this rope hanging method was expanded. It is a hoistway longitudinal cross-sectional view explaining this rope hanging method. It is a hoistway cross-sectional view explaining the rope hanging method. It is a hoistway longitudinal cross-sectional view explaining this rope hanging method. It is a hoistway longitudinal cross-sectional view explaining this rope hanging method.

  Hereinafter, the best mode for carrying out an elevator rope hanging method according to the present invention will be described with reference to the drawings.

  FIG. 1 is a flowchart showing a method of hanging an elevator according to an embodiment of the present invention, FIG. 2 is a vertical sectional view of a hoistway explaining the rope hanging method, and FIG. FIG. 4 is a longitudinal sectional view of the hoistway explaining the rope hanging method, FIG. 5 is a transverse sectional view of the hoistway explaining the rope hanging method, and FIG. 6 is a hoistway longitudinal section explaining the rope hanging method. FIG. 7 is a vertical sectional view of a hoistway for explaining the rope hanging method.

  As shown in FIG. 2, the elevator rope hanging method according to the embodiment of the present invention is applied to an elevator including a machine room 1 </ b> B at the top of the hoistway 1 </ b> A. The machine room 1B includes a ceiling hanging beam 2 that becomes a hanging point in the vicinity of the ceiling, a first lifting machine 3 attached to the ceiling hanging beam 2, and a machine room 1B parallel to the floor surface. A machine beam 4 mounted and fixed, a hoisting machine 5 mounted and fixed on the machine beam 4 and having a sheave 5a, and a turning pulley 6 mounted on the machine beam 4 are provided. Moreover, as shown in FIG.3 and FIG.5, the ceiling suspension beam 2 makes a pair, and is mutually arrange | positioned in parallel. The hoistway 1A includes a pair of guide rails 7a and 7b extending parallel to each other along the hoistway wall, and a work floor 8 which is guided by the left guide rail 7a and moves up and down. The operating device 3b for driving the first lifting machine 3 is provided.

  Hereinafter, the procedure of the elevator rope hanging method according to the embodiment of the present invention will be described mainly using the flowchart of FIG.

  First, the work floor 8 is suspended above the hoistway 1A by the rope 3a of the first lifting machine 3 (S1). Then, the counterweight 11 is carried into the hoistway 1A from the lowest floor landing (see FIG. 6), assembled, and installed on the right guide rail 7b (S2). At this time, the counterweight 11 only includes a counterweight frame 11a on which the weight 11b is placed and a counterweight socket 11c attached to the upper surface of the counterweight frame 11a, and still has the weight 11b. Not. Note that the order of step S1 and step S2 is variable.

  Next, using a lifting machine (not shown) provided in the machine room 1B, the counterweight 11 is guided to the guide rail 7b and lifted up to the upper part of the hoistway 1A. Then, as shown in FIG. 2, a chain block 13 attached to the ceiling suspension beam 2 via a sling wire 12a is used, and the counterweight 11 is connected to the upper part of the hoistway 1A via a sling wire 12b hanging from the chain block 13. (S3).

  Next, the weight 11b is loaded onto the counterweight frame 11a from the work floor 8 (S4). At this time, the number of weights 11b to be loaded is a number corresponding to half of the rated (total) weight of the car (see FIG. 7) to be installed.

  Next, the rope drum 17 around which the main rope 16 is wound is placed on the uppermost landing 18a so as to be able to roll through the drum 19 (S5), and the main rope 16 is fed out from the rope drum 17 to the machine room 1B. Pull up. Then, the main rope 16 is wound around the sheave 5a of the hoisting machine 5, is suspended to the hoistway 1A via the turning pulley 6 (S6), and is connected to the counterweight socket 11c of the counterweight 11 (S7).

  Next, as shown in FIGS. 3 to 5, the support worker 21 is suspended above the hoistway 1 </ b> A by the rope 22 a of the second lifting machine 22 attached to the pair of ceiling suspension beams 2 of the machine room 1 </ b> B ( In step S8, the rope drum 17 is moved from the top floor landing 18a and is rotatably suspended on the support staff 21 (S9).

  Here, the second lifting machine 22 is attached to one of the pair of ceiling suspended beams 2 via a sling wire 30, and the rope 22 a of the second lifting machine 22 is connected via a gold wheel 31 and a sling wire 30. Attached to the other. Further, the support worker 21 is inserted into the suspension beam 23 suspended via the cord-like body 23 a attached to the gold wheel 31 and the cylindrical hollow portion of the rope drum 17, and the beam clamp 24 is attached to the suspension beam 23. A rotation support rod 26 that rotatably supports the rope drum 17 with a pair of suspension wires 25 attached thereto, and attached to both ends of the rotation support rod 26 to prevent the rope drum 17 and the pair of suspension wires 25 from falling off. And a drop-off prevention member 27.

  Next, as shown in FIGS. 5 and 6, a worker on the work floor 8 supports the rope drum 17 suspended above the hoistway 1A, and another worker on the work floor 8 moves the operating device 3b. Is operated to drive the first lifting machine 3 and to instruct a worker in the machine room 1B to lower the rope drum 17 to the lower part of the hoistway 1A. Upon receiving this instruction, the worker in the machine room 1B operates the operating device 22b provided in the machine room 1B to drive the second lifting machine 22, and synchronizes the work floor 8 and the support worker 21. To lower the hoistway 1A (S10).

  Next, the main rope 16 is removed from the rope drum 17 below the hoistway 1A and temporarily fixed to the guide rail 7a (S11). And the above procedure S5-S11 is repeated and the required number of main ropes 16 are installed (S12).

  Next, as shown in FIG. 7, the work floor 8 is removed from the guide rail 7a and carried out from the lowest floor landing 18b (S13). Then, the car reception 35a is installed on the guide rail 7a at the lower part of the hoistway 1A (S14), and the car 35 is assembled in a state of being engaged with the guide rail 7a while being received by the car reception 35a (S15), The main rope 16 is removed from the guide rail 7a and connected to a car-side socket 35b provided on the upper surface of the car 35 (S16).

  Next, after the main rope 16 is connected to the car 35, the chain block 13 is operated to lift the counterweight 11, and after lifting the counterweight 11, the car hire 35a is removed (S17). Then, the counterweight 11 is suspended by operating the chain block 13, and the main rope 16 is tensioned and adjusted (S18). Finally, the chain block 13 is removed from the counterweight 11, and a low-speed trial operation of the car 35 is performed (S19).

  According to the elevator rope hanging method according to the present invention as described above, the work floor 8 and the support worker 21 are separately provided using the rope 3a of the first lifting machine 3 and the rope 22a of the second lifting machine 22, respectively. Even if it is a heavy rope drum 17, it can be raised / lowered by suspending and transferring the rope drum 17 to this support employment 21. Therefore, in a state where the main rope 16 drawn out from the rope drum 17 is connected to the counterweight 11 via the hoisting machine 5, the second lifting machine 22 is driven to lower the rope drum 17, thereby the rope drum The main rope 16 can be fed out by rotating 17. At that time, the first lifting machine 3 and the second lifting machine 22 are driven to lower the work floor 8 and the support worker 21 synchronously to the lower part of the hoistway 1A, so that the rope drum is removed from the work floor 8 during the lowering. 17 can be supported, so that the vibration of the rope drum 17 can be suppressed, the safety of the worker can be secured, and the main ropes 16 can be prevented from being entangled. Can be performed easily. In this way, the safety and work efficiency of work can be improved, and it can be applied to an elevator installed in a high-rise building, and is highly versatile.

  Further, the support employer 21 is provided with drop-off prevention members 27 at both ends of the rotation support rod 26, so that the rope drum 17 vibrates while the rope drum 17 descends from the upper part of the hoistway 1A to the lower part of the hoistway 1A. In addition, it is possible to prevent the rope drum 17 and the pair of hanging wires 25 from falling off, and it is possible to further improve the safety of the worker during work.

  In the embodiment of the present invention, the case where a plurality of main ropes 16 are provided on the counterweight 11 and the car 35 by repeating the steps S5 to S11 shown in FIG. 1 is described. The drum 17 may be suspended by the second lifting machine 22, and the plurality of rope drums 17 may be simultaneously lowered to feed out the main rope 16. In this case, since the frequency | count of repeating the procedure of S5-S11 can be reduced, work time can be shortened and the efficiency of work can be improved.

DESCRIPTION OF SYMBOLS 1A Hoistway 1B Machine room 2 Ceiling suspended beam 3 1st lifting machine 3a 1st lifting machine rope 3b, 22b Operating device 4 Machine beam 5 Lifting machine 5a Sheave 6 Turning pulley 7a, 7b Guide rail 8 Work floor 11 Balance weight 11a Balance weight frame 11b Weight 11c Balance weight socket 12a, 12b, 30 sling wire 13 Chain block 16 Main rope 17 Rope drum 18a Top floor landing 18b Bottom floor landing 19 Drum rotation 21 Support employment 22 Second lifting machine 22a Rope of the second lifting machine 23 Suspension beam 23a Cable body 24 Beam clamp 25 Suspension wire 26 Rotation support rod 27 Fall-off prevention means 31 Money wheel 35 Ride car 35a Ride car hire 35b Car side socket

Claims (1)

In the elevator rope hooking method, one end of the main rope is connected to the car and the other end of the main rope is connected to the counterweight via a hoist provided in the machine room at the top of the hoistway.
Suspending the counterweight above the hoistway;
Suspending a work floor above the hoistway with a rope of a first lifting machine;
Suspending a support hire above the hoistway with a rope of a second hoist;
Placing the rope drum around which the main rope is wound on the upper floor landing, wrapping the main rope fed out from the rope drum around the hoisting machine, and connecting to the counterweight;
Transitioning the rope drum from the upper floor landing and suspending it to the support hire,
Driving the first lifting machine and the second lifting machine to synchronize the work floor and the support hire to the lower part of the hoistway; and
Removing the main rope from the rope drum at the lower part of the hoistway and connecting it to the car.

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